Oil pump



Aug. 2%, 1935. A. J. TRAVIS 2,931,883

v OIL PUMP Filed April 18, 1954 2 Sheets-Sheet l ATTORNEY WITNESS:

A. J. TRAVIS OIL PUMP Filed April 18, 1934 2 Sheets-Sheet 2 INVENTOR BY w ATTORNEY Patented Aug. 29, 19 35,

UNITED STATES PATENT OFFICE OIL PUMP V Alvin J. Travis, Gray, Okla, assignor of five" twenty-fourths to J. L. Stump, seven twentyfourths to Oda Sutton, and four twenty-fourths to 0. A. Sutton, all of Hardesty, Okla.

' Application April 18, 1934, Serial No. 721,233

ing oil well pumps and has for the primary ob-.

ject, the provision of a device of the abovestated '5 character whereby power delivered from a power source in a rotary motion may be converted into a reciprocatory motion with minimum friction and loss in power and further provides a device which may be easily and quickly set up for operation either in horizontally or'verticall'y arranged positions and is capable of successfully operating a series of pumps.

With these and other obj ects in view this inventionconsists in certain novel features of construction, combination and arrangement of parts a to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in. which Figure 1 is a rear elevation illustrating a pump operating. mechanism constructed in' accordance with my invention. I

Figure 2 is a side elevation illustrating the same. Figure 3 is a view similar to Figure 1, part1 in section. V

Figure 4 is a vertical sectional view illustrating the device.

Figure 5 is a sectional view taken on the line 5-5 of Figure 1. Figure 6 is a sectional view taken on'the line 6-6 of Figure 3.

Referring in detail to the drawings, the numeral I indicates a frame for slidably supporting a bar or beam 2 and may be arranged vertically or horizontally with respect to a Well and when arranged I vertically it is supportedby legs 3, as. shown inthe drawings. To support the frame l'horizontally any other suitable carrying means therefor may be provided. The frame I is in the form of a channeled member and carries a bracket 4 which forms a support for a: .bearing 5- of the sectional type, wherein the sections are detachably connected, as shown at 6. The bearingb .rotatably supports an annular disc or plate 7 pro-g be limited in its endwise movements. The rack bar has formed upon opposite edgesand its ends teeth l2 and also formed upon one facethereof isarib l3 extending substantially the full length of the rackbar and operating between the guides of the frame and projecting beyond one side of said frame to which maybe connected the reciprocating element 14 of a pump or, if desired, pump connections in the form of slidable rods'or cables may be connected to the ends of the rib so that the device may be made to successfully operate a series of pumps.

A shaft ranged co I5 is iournaled to the disc 1 and arncentrically thereof and laterally of the opening 8 and has secured to its ends pinions I5 and H.

The pinion l6 meshes with the teeth l9 carried tate in the by the disc 1 and arranged eccentrically thereof and meshes with a pinion 20 secured to the power shaft. The disc is free to robearing 5 so that the pinion I6 may be caused to walk or ride about the ends of thebeam I or bar 2 when the latter reaches the end of either of its endwise movements so that the pinion I6 may mesh with the teeth arranged on either edge 4 of said beam or bar.

bull wheel Power is delivered to the l 9 in any suitable manner causing rotation of the shaft 9 and the latter drives the pinion l6 through the pinions l8 and I1, causing a reciprocation of the bar or beam within the frame I. 'I may lie The frame is cut away so that the disc in close proximity to the grooved face Having described the invention, I claim:

bearing, a

ends thereof and slidable in the'frame and prorack bar having teeth on the sides and vided with a groove disposed next to the plate, a drive shaftjournaled to the bracket and extending through the "plate and entering the groove of the bar and arranged concentrically of the. plate, gear means between the shaft, plate and the teeth'of the rack bar, and a flange on the rack bar and'operating betweenthe guides of the frame andadapted-for connection to a VALVINQJ. TRAVIS} 

